Resource management for video streaming with inattentive user

ABSTRACT

Aspects of the subject disclosure may include, for example, a method including detecting attention by a user to a presentation displayed at an audiovisual presentation device. A real-time image of the user is obtained and stored local to the audiovisual presentation device. The image is analyzed to determine a presence in the image of a facial feature of the user; the device determines, based on the presence of the facial feature, whether the user is attentive to the presentation. When the user is not attentive to the presentation, a procedure is initiated at the audiovisual presentation device to reduce resource consumption by the device; the procedure can include continuing the presentation at a video quality level lower than at the beginning of the presentation, reducing a brightness of the display, continuing the presentation with only the audio portion, and discontinuing the presentation. Other embodiments are disclosed.

FIELD OF THE DISCLOSURE

The subject disclosure relates to video streaming services, and moreparticularly to a system for managing resource usage at a user devicewhen the user is not paying attention to a video presentation on thedevice.

BACKGROUND

Streaming video to user devices (particularly mobile devices) has becomepopular. However, a user can become distracted while viewing a streamingvideo presentation.

BRIEF DESCRIPTION OF THE DRAWINGS

Reference will now be made to the accompanying drawings, which are notnecessarily drawn to scale, and wherein:

FIG. 1 schematically illustrates presentation of content at a userdevice, in accordance with embodiments of the disclosure;

FIG. 2 schematically illustrates detecting whether a user is payingattention to the presentation at the user device, in accordance withembodiments of the disclosure;

FIGS. 3-4 are connected flowcharts depicting an illustrative embodimentof a method for managing resources at the user device of FIGS. 1-2, inaccordance with embodiments of the disclosure;

FIGS. 5-6 depict illustrative embodiments of communication systems thatprovide media services to the user devices of FIGS. 1-2;

FIG. 7 depicts an illustrative embodiment of a web portal forinteracting with the communication systems of FIGS. 1-2 and 5-6;

FIG. 8 depicts an illustrative embodiment of a communication device; and

FIG. 9 is a diagrammatic representation of a machine in the form of acomputer system within which a set of instructions, when executed, maycause the machine to perform any one or more of the methods describedherein.

DETAILED DESCRIPTION

The subject disclosure describes, among other things, illustrativeembodiments for detecting whether a user of an audiovisual presentationdevice is paying attention to a presentation at the device, and if not,performing a staged reduction of resource consumption at the device.Other embodiments are described in the subject disclosure.

One or more aspects of the subject disclosure include a methodcomprising detecting, by a processing system including a processor of anaudiovisual presentation device, attention by a user to a presentationof content at a display of the audiovisual presentation device; thecontent includes an audio portion and a video portion and thepresentation is initiated at a first video quality level. The detectingincludes obtaining a real-time image of the user; storing the image in adata storage local to the audiovisual presentation device; performing ananalysis of the image; determining, based on the analysis, a presence inthe image of a predefined facial feature of the user; determining, basedon the presence of the predefined facial feature, whether the user isattentive to the presentation; and deleting the image from the datastorage after the analysis. The method also includes initiating,responsive to the user not being attentive to the presentation, a firstprocedure at the audiovisual presentation device to reduce resourceconsumption by the audiovisual presentation device; the first procedureincludes one or more of continuing the presentation at a second videoquality level lower than the first video quality level, reducing abrightness of the display, continuing the presentation with only theaudio portion, and discontinuing the presentation.

One or more aspects of the subject disclosure include a devicecomprising a processing system including a processor and a memory thatstores executable instructions; the instructions, when executed by theprocessing system, facilitate performance of operations. The operationscomprise detecting attention by a user to a presentation of content at adisplay of an audiovisual presentation device; the content includes anaudio portion and a video portion, and the presentation is initiated ata first video quality level. The detecting comprises obtaining areal-time image of the user; storing the image in a data storage localto the audiovisual presentation device; performing an analysis of theimage, the analysis comprising an eye detection procedure; determining,based on the analysis, a presence in the image of a predefined facialfeature of the user; determining, based on the presence of thepredefined facial feature, whether the user is attentive to thepresentation; and deleting the image from the data storage after theanalysis. The operations also comprise initiating, responsive to theuser not being attentive to the presentation, a first procedure at theaudiovisual presentation device to reduce resource consumption by theaudiovisual presentation device. The detecting is performed atpredetermined time intervals during the presentation, and the firstprocedure comprises one or more of continuing the presentation at asecond video quality level lower than the first video quality level;reducing a brightness of the display; continuing the presentation withonly the audio portion; and discontinuing the presentation.

One or more aspects of the subject disclosure include a non-transitorymachine-readable medium comprising executable instructions that, whenexecuted by a processing system including a processor, facilitateperformance of operations. The operations comprise detecting attentionby a user to a presentation of content at a display of an audiovisualpresentation device; the content includes an audio portion and a videoportion, and the presentation is initiated at a first video qualitylevel. The detecting comprises obtaining a real-time image of the user;storing the image in a data storage local to the audiovisualpresentation device; performing an analysis of the image; determining,based on the analysis, a presence in the image of a predefined facialfeature of the user; determining, based on the presence of thepredefined facial feature, whether the user is attentive to thepresentation, where the user is determined to not be attentive to thepresentation responsive to the predefined facial feature not beingpresent in the image over a plurality of time intervals; and deletingthe image from the data storage after the analysis. The operationsfurther comprise initiating, responsive to the user not being attentiveto the presentation, a first procedure at the audiovisual presentationdevice to reduce resource consumption by the audiovisual presentationdevice; the first procedure includes one or more of continuing thepresentation at a second video quality level lower than the first videoquality level, reducing a brightness of the display, continuing thepresentation with only the audio portion, and discontinuing thepresentation.

FIG. 1 schematically illustrates an embodiment 100 of the disclosure, inwhich a user 101 of user device 110 obtains audio/video content 120 forpresentation at the device. In this embodiment, the user subscribes to aservice provider network 150 which delivers the content from a contentprovider system including a content server 160.

The user device 110 includes a display screen 112 and a camera 115. Asshown schematically in FIG. 1, the user's line of sight 102 is generallydirected at the display screen 112 while the user is attentively viewingthe video presentation. Accordingly, the user's eyes are within thefield of view of the camera 115.

FIG. 2 schematically illustrates a procedure 200 for detecting whetherthe user is paying attention to the video presentation, in accordancewith embodiments of the disclosure. At the beginning of the videopresentation and at intervals thereafter, the camera 115 automaticallyacquires an image 201 of the user's face, including the user's eyes. Theimage is then stored in a storage medium 116 local to the device, andanalyzed by a processor 118 local to the device and coupled to storage116.

The processor 118 executes a detection algorithm using the image 201 asinput. In this embodiment, the algorithm can detect whether the user'seyes are in the image; if so, the algorithm determines that the user ispaying attention to the presentation at the display 112. If the user'seyes are not detected, the algorithm determines that the user is notpaying attention to the display.

It will be appreciated that the procedures for acquiring, storing andanalyzing the image are performed locally at the user device, and thusdo not require use of network resources. In this embodiment, the imageis deleted from the storage 116 after being analyzed; only one userimage is stored at a time, and then only while required for thedetection procedure, thereby conserving device resources and protectinguser privacy.

The time interval for acquiring and analyzing the image can be a devicesetting, either predefined or adjustable by the user. The time intervalcan be constant throughout the presentation, or vary during thepresentation. In an embodiment, the interval is longest at the beginningof the presentation (when the user is more likely to be payingattention), and becomes progressively shorter (not necessarily in alinear fashion) during the presentation.

Alternatively, the time interval can be prescribed in metadataaccompanying the content 120. In this embodiment, the interval can varywith the current portion of the content, depending on the networkresources required to deliver that content. For example, during a sceneinvolving only two characters engaging in dialogue, the user's attentionmay be assessed less frequently (i.e. with a longer time interval),while during an action scene (e.g. combat, car chase, explosion)requiring greater network resources, the user's attention may be moreclosely monitored (i.e. with a shorter time interval).

In another embodiment, a schedule for assessing user attention, duringpresentation of a specific item of content, can be preloaded in storage116, either when the user requests download of that content or at anearlier time.

In the foregoing embodiments, the time interval for assessing the user'sattention depends either on a device setting or on the item of content,and thus is independent of network conditions. In another embodiment, amessage specifying a time interval can be sent to the user device viathe network to optimize network resource usage; for example, the serviceprovider can require a shorter time interval during a period ofincreased bandwidth usage. In this embodiment, the specified timeinterval can depend on a subscription level of the user; for example, auser with a “Platinum Level” subscription can have his attentionmonitored less closely than a user with a “Bronze Level” subscription.In another embodiment, the user can select (and communicate to thenetwork service provider) acceptance of a shorter time interval, inexchange for a discounted subscription rate and/or a discounted pricefor downloading the item of content.

FIG. 3 is a flowchart depicting a method 300 for detecting userattention at the user device of FIGS. 1-2, in accordance withembodiments of the disclosure. In these embodiments, a procedure isinvoked for reducing resource usage at the user device if the user isdetermined to be not paying attention to an audiovisual presentation onthe device.

In step 302, streaming an item of content at the user device is ready tobegin. The user is presented with a menu of resource reduction optionsand makes selection(s) from those options (step 304). Alternatively(step 303), the resource reduction options can be preselected (e.g. byprevious user selections) or established by default (e.g. predefineddevice settings). The resource reductions to be applied, and thesequence for applying them, are stored in device storage 116 (step 306).

The presentation of the content then begins (step 307). In anembodiment, if the processor 118 detects any additional device usageduring the presentation, such as use of the mobile phone (step 309), theuser is immediately assumed to be not paying attention to thepresentation.

At the beginning of the presentation, the device camera 115 obtains animage of the user (step 308); the image is stored in the device storage116 (step 310) and then analyzed (step 312) to detect a feature of theuser; for example, an eye-detection algorithm determines whether theuser's eyes appear in the image. If the result is negative (that is, theuser's eyes are not detected in the image), the resource reductionprocedure is invoked (step 314). In an embodiment, the resourcereduction procedure is invoked only after a specified number of negativeresults (e.g. three negative results in the last five intervals, and/orthree consecutive negative results).

The image is deleted from storage 116 (step 316) after the user isdetermined to be paying attention. If a resource reduction is already inplace (step 318), the presentation can be restored to its originalquality; alternatively, one or more resource reductions can be removedin a specified sequence (step 319). For example, if after an intervalthe user is again paying attention, a previously dimmed display screen112 can be restored to its usual brightness; if the user is determinedto be paying attention for a specified number of intervals thereafter,the presentation can continue with its video quality restored to itsoriginal level. In an embodiment, the restorations of presentationquality can be applied in a user-defined sequence; alternatively, thissequence can be a default according to a device setting. A new timeinterval then begins (step 320), and a new assessment of user attentionis made at the end of that interval.

FIG. 4 is a flowchart depicting a method 400 for applying resourcereductions at the user device of FIGS. 1-2, in accordance withembodiments of the disclosure. In these embodiments, resource usage isreduced in stages if the user is determined to be not paying attentionto an audiovisual presentation on the device.

Once a determination of user inattention is made, the user image isdeleted from storage 116 (step 402). A resource reduction procedure isthen performed (step 404); the action taken can depend on which (if any)resource reductions have already been made. For example, the firstresource reduction can include reducing the quality of the video (e.g.by streaming at a lower bitrate). If the user still is not payingattention at the next interval (or after a specified number ofintervals), a second resource reduction can include dimming thepresentation screen. A third resource reduction can include turning offthe display, so that the presentation continues with its audio portiononly. As a final resource reduction, the device processor can cause thepresentation to be terminated.

It will be appreciated that a variety of resource reductions can beapplied, and that resource reductions can be applied in a variety ofsequences. For example, in a user device where device power is a primaryconcern, the first resource reduction can be dimming the device screen.

If the presentation is still to continue (step 406), a new time intervalbegins (step 408), and a new assessment of user attention is made at theend of that interval.

In the foregoing embodiments, the resource reductions and theirapplication sequence are specified at the beginning of the presentation;application of a particular resource reduction depends on the assessmentof the user's attention (in the current interval and/or past intervals),and thus is independent of network conditions. In another embodiment, amessage specifying a resource reduction can be sent to the user deviceto optimize network resource usage; for example, the service providercan require a reduced bitrate if the user has not paid attention for acertain number of intervals. In an embodiment, the resource reductionscan be in accordance with a user's subscription level; for example, a“Platinum Level” subscriber can specify that the bitrate should not bereduced, or that the display screen should not be dimmed until the videois turned off entirely.

While for purposes of simplicity of explanation, the respectiveprocesses are shown and described as a series of blocks in FIGS. 3-4, itis to be understood and appreciated that the claimed subject matter isnot limited by the order of the blocks, as some blocks may occur indifferent orders and/or concurrently with other blocks from what isdepicted and described herein. Moreover, not all illustrated blocks maybe required to implement the methods described herein.

FIG. 5 depicts an illustrative embodiment of a communication system 500for providing various communication services, such as delivering mediacontent. The communication system 500 can represent an interactive medianetwork, such as an interactive television system (e.g., an InternetProtocol Television (IPTV) media system). Communication system 500 canbe overlaid or operably coupled with the devices of FIGS. 1 and/or 2 asanother representative embodiment of communication system 500. Forinstance, one or more devices illustrated in the communication system500 of FIG. 5 can include a processing system including a processor anda memory that stores executable instructions; the instructions, whenexecuted by the processing system, facilitate performance of operations.The operations can comprise detecting attention by a user to apresentation of content at a display of an audiovisual presentationdevice, where the content includes an audio portion and a video portion,and the presentation is initiated at a first video quality level. Thedetecting can comprise obtaining a real-time image of the user; storingthe image in a data storage local to the audiovisual presentationdevice; performing an analysis of the image, the analysis comprising aneye detection procedure; determining, based on the analysis, a presencein the image of a predefined facial feature of the user; determining,based on the presence of the predefined facial feature, whether the useris attentive to the presentation; and deleting the image from the datastorage after the analysis. The operations can also comprise initiating,responsive to the user not being attentive to the presentation, a firstprocedure at the audiovisual presentation device to reduce resourceconsumption by the audiovisual presentation device. The detecting can beperformed at predetermined time intervals during the presentation; thefirst procedure can comprise one or more of continuing the presentationat a second video quality level lower than the first video qualitylevel; reducing a brightness of the display; continuing the presentationwith only the audio portion; and discontinuing the presentation.

In one or more embodiments, the communication system 500 can include asuper head-end office (SHO) 510 with at least one super headend officeserver (SHS) 511 which receives media content from satellite and/orterrestrial communication systems. In the present context, media contentcan represent, for example, audio content, moving image content such as2D or 3D videos, video games, virtual reality content, still imagecontent, and combinations thereof. The SHS server 511 can forwardpackets associated with the media content to one or more video head-endservers (VHS) 514 via a network of video head-end offices (VHO) 512according to a multicast communication protocol. The VHS 514 candistribute multimedia broadcast content via an access network 518 tocommercial and/or residential buildings 502 housing a gateway 504 (suchas a residential or commercial gateway).

The access network 518 can represent a group of digital subscriber lineaccess multiplexers (DSLAMs) located in a central office or a servicearea interface that provide broadband services over fiber optical linksor copper twisted pairs 519 to buildings 502. The gateway 504 can usecommunication technology to distribute broadcast signals to mediaprocessors 506 such as Set-Top Boxes (STBs) which in turn presentbroadcast channels to media devices 508 such as computers or televisionsets managed in some instances by a media controller 507 (such as aninfrared or RF remote controller).

The gateway 504, the media processors 506, and media devices 508 canutilize tethered communication technologies (such as coaxial, powerlineor phone line wiring) or can operate over a wireless access protocolsuch as Wireless Fidelity (WiFi), Bluetooth®, Zigbee®, or other presentor next generation local or personal area wireless network technologies.By way of these interfaces, unicast communications can also be invokedbetween the media processors 506 and subsystems of the IPTV media systemfor services such as video-on-demand (VoD), browsing an electronicprogramming guide (EPG), or other infrastructure services.

A satellite broadcast television system 529 can be used in the mediasystem of FIG. 5. The satellite broadcast television system can beoverlaid, operably coupled with, or replace the IPTV system as anotherrepresentative embodiment of communication system 500. In thisembodiment, signals transmitted by a satellite 515 that include mediacontent can be received by a satellite dish receiver 531 coupled to thebuilding 502. Modulated signals received by the satellite dish receiver531 can be transferred to the media processors 506 for demodulating,decoding, encoding, and/or distributing broadcast channels to the mediadevices 508. The media processors 506 can be equipped with a broadbandport to an Internet Service Provider (ISP) network 532 to enableinteractive services such as VoD and EPG as described above.

In yet another embodiment, an analog or digital cable broadcastdistribution system such as cable TV system 533 can be overlaid,operably coupled with, or replace the IPTV system and/or the satelliteTV system as another representative embodiment of communication system500. In this embodiment, the cable TV system 533 can also provideInternet, telephony, and interactive media services. System 500 enablesvarious types of interactive television and/or services including IPTV,cable and/or satellite.

The subject disclosure can apply to other present or next generationover-the-air and/or landline media content services system.

Some of the network elements of the IPTV media system can be coupled toone or more computing devices 530, a portion of which can operate as aweb server for providing web portal services over the ISP network 532 towireline media devices 508 or wireless communication devices 516.

Communication system 500 can also provide for all or a portion of thecomputing devices 530 to function as a server (herein referred to asserver 530). The server 530 can use computing and communicationtechnology to deliver content to user devices. For instance, functionsof server 530 can be similar to the functions described for server 160of FIG. 1. The media processors 506 and wireless communication devices516 can be provisioned with software functions to utilize the servicesof server 530. For instance, functions of media processors 506 andwireless communication devices 516 can be similar to the functionsdescribed for device 101 of FIGS. 1-2 in accordance with methods300-400.

Multiple forms of media services can be offered to media devices overlandline technologies such as those described above. Additionally, mediaservices can be offered to media devices by way of a wireless accessbase station 517 operating according to common wireless access protocolssuch as Global System for Mobile or GSM, Code Division Multiple Accessor CDMA, Time Division Multiple Access or TDMA, Universal MobileTelecommunications or UMTS, World interoperability for Microwave orWiMAX, Software Defined Radio or SDR, Long Term Evolution or LTE, and soon. Other present and next generation wide area wireless access networktechnologies can be used in one or more embodiments of the subjectdisclosure. FIG. 6 depicts an illustrative embodiment of a communicationsystem 600 employing an IP Multimedia Subsystem (IMS) networkarchitecture to facilitate the combined services of circuit-switched andpacket-switched systems. Communication system 600 can be overlaid oroperably coupled with devices of FIGS. 1 and/or 2 and communicationsystem 500 as another representative embodiment of communication system500. In particular, the communication system can perform a method thatincludes detecting, by a processing system including a processor of anaudiovisual presentation device, attention by a user to a presentationof content at a display of the audiovisual presentation device; thecontent can include an audio portion and a video portion, and thepresentation can be initiated at a first video quality level. Thedetecting can include obtaining a real-time image of the user; storingthe image in a data storage local to the audiovisual presentationdevice; performing an analysis of the image; determining, based on theanalysis, a presence in the image of a predefined facial feature of theuser; determining, based on the presence of the predefined facialfeature, whether the user is attentive to the presentation; and deletingthe image from the data storage after the analysis. The method can alsoinclude initiating, responsive to the user not being attentive to thepresentation, a first procedure at the audiovisual presentation deviceto reduce resource consumption by the audiovisual presentation device;the first procedure can include one or more of continuing thepresentation at a second video quality level lower than the first videoquality level, reducing a brightness of the display, continuing thepresentation with only the audio portion, and discontinuing thepresentation.

Communication system 600 can comprise a Home Subscriber Server (HSS)640, a tElephone NUmber Mapping (ENUM) server 630, and other networkelements of an IMS network 650. The IMS network 650 can establishcommunications between IMS-compliant communication devices (CDs) 601,602, Public Switched Telephone Network (PSTN) CDs 603, 605, andcombinations thereof by way of a Media Gateway Control Function (MGCF)620 coupled to a PSTN network 660. The MGCF 620 need not be used when acommunication session involves IMS CD to IMS CD communications. Acommunication session involving at least one PSTN CD may utilize theMGCF 620.

IMS CDs 601, 602 can register with the IMS network 650 by contacting aProxy Call Session Control Function (P-CSCF) which communicates with aninterrogating CSCF (I-CSCF), which in turn, communicates with a ServingCSCF (S-CSCF) to register the CDs with the HSS 640. To initiate acommunication session between CDs, an originating IMS CD 601 can submita Session Initiation Protocol (SIP INVITE) message to an originatingP-CSCF 604 which communicates with a corresponding originating S-CSCF606. The originating S-CSCF 606 can submit the SIP INVITE message to oneor more application servers (ASs) 617 that can provide a variety ofservices to IMS subscribers.

For example, the application servers 617 can be used to performoriginating call feature treatment functions on the calling party numberreceived by the originating S-CSCF 606 in the SIP INVITE message.Originating treatment functions can include determining whether thecalling party number has international calling services, call IDblocking, calling name blocking, 7-digit dialing, and/or is requestingspecial telephony features (e.g., *72 forward calls, *73 cancel callforwarding, *67 for caller ID blocking, and so on). Based on initialfilter criteria (iFCs) in a subscriber profile associated with a CD, oneor more application servers may be invoked to provide various calloriginating feature services.

Additionally, the originating S-CSCF 606 can submit queries to the ENUMsystem 630 to translate an E.164 telephone number in the SIP INVITEmessage to a SIP Uniform Resource Identifier (URI) if the terminatingcommunication device is IMS-compliant. The SIP URI can be used by anInterrogating CSCF (I-CSCF) 607 to submit a query to the HSS 640 toidentify a terminating S-CSCF 614 associated with a terminating IMS CDsuch as reference 602. Once identified, the I-CSCF 607 can submit theSIP INVITE message to the terminating S-CSCF 614. The terminating S-CSCF614 can then identify a terminating P-CSCF 616 associated with theterminating CD 602. The P-CSCF 616 may then signal the CD 602 toestablish Voice over Internet Protocol (VoIP) communication services,thereby enabling the calling and called parties to engage in voiceand/or data communications. Based on the iFCs in the subscriber profile,one or more application servers may be invoked to provide various callterminating feature services, such as call forwarding, do not disturb,music tones, simultaneous ringing, sequential ringing, etc.

In some instances the aforementioned communication process issymmetrical. Accordingly, the terms “originating” and “terminating” inFIG. 6 may be interchangeable. It is further noted that communicationsystem 600 can be adapted to support video conferencing. In addition,communication system 600 can be adapted to provide the IMS CDs 601, 602with the multimedia and Internet services of communication system 500 ofFIG. 5.

If the terminating communication device is instead a PSTN CD such as CD603 or CD 605 (in instances where the cellular phone only supportscircuit-switched voice communications), the ENUM system 630 can respondwith an unsuccessful address resolution which can cause the originatingS-CSCF 606 to forward the call to the MGCF 620 via a Breakout GatewayControl Function (BGCF) 619. The MGCF 620 can then initiate the call tothe terminating PSTN CD over the PSTN network 660 to enable the callingand called parties to engage in voice and/or data communications.

It is further appreciated that the CDs of FIG. 6 can operate as wirelineor wireless devices. For example, the CDs of FIG. 6 can becommunicatively coupled to a cellular base station 621, a femtocell, aWiFi router, a Digital Enhanced Cordless Telecommunications (DECT) baseunit, or another suitable wireless access unit to establishcommunications with the IMS network 650 of FIG. 6. The cellular accessbase station 621 can operate according to common wireless accessprotocols such as GSM, CDMA, TDMA, UMTS, WiMax, SDR, LTE, and so on.Other present and next generation wireless network technologies can beused by one or more embodiments of the subject disclosure. Accordingly,multiple wireline and wireless communication technologies can be used bythe CDs of FIG. 6.

Cellular phones supporting LTE can support packet-switched voice andpacket-switched data communications and thus may operate asIMS-compliant mobile devices. In this embodiment, the cellular basestation 621 may communicate directly with the IMS network 650 as shownby the arrow connecting the cellular base station 621 and the P-CSCF616.

Alternative forms of a CSCF can operate in a device, system, component,or other form of centralized or distributed hardware and/or software.Indeed, a respective CSCF may be embodied as a respective CSCF systemhaving one or more computers or servers, either centralized ordistributed, where each computer or server may be configured to performor provide, in whole or in part, any method, step, or functionalitydescribed herein in accordance with a respective CSCF. Likewise, otherfunctions, servers and computers described herein, including but notlimited to, the HSS, the ENUM server, the BGCF, and the MGCF, can beembodied in a respective system having one or more computers or servers,either centralized or distributed, where each computer or server may beconfigured to perform or provide, in whole or in part, any method, step,or functionality described herein in accordance with a respectivefunction, server, or computer.

The server 530 of FIG. 5 can be operably coupled to communication system600 for purposes similar to those described above. Server 530 canprovide services to the CDs 601, 602, 603 and 605 of FIG. 6, which canbe adapted with software to utilize the services of the server 530 andperform functions similar to the functions described for communicationdevice 101 of FIGS. 1-2 in accordance with methods 300-400 of FIGS. 3-4.Server 530 can be an integral part of the application server(s) 617,which can be adapted to the operations of the IMS network 650.

For illustration purposes only, the terms S-CSCF, P-CSCF, I-CSCF, and soon, can be server devices, but may be referred to in the subjectdisclosure without the word “server.” It is also understood that anyform of a CSCF server can operate in a device, system, component, orother form of centralized or distributed hardware and software. It isfurther noted that these terms and other terms such as DIAMETER commandsare terms can include features, methodologies, and/or fields that may bedescribed in whole or in part by standards bodies such as 3^(rd)Generation Partnership Project (3GPP). It is further noted that some orall embodiments of the subject disclosure may in whole or in partmodify, supplement, or otherwise supersede final or proposed standardspublished and promulgated by 3GPP.

FIG. 7 depicts an illustrative embodiment of a web portal 702 of acommunication system 700. Communication system 700 can be overlaid oroperably coupled with the devices of FIGS. 1 and/or 2, communicationsystem 500, and/or communication system 600 as another representativeembodiment of the devices of FIGS. 1 and/or 2, communication system 500,and/or communication system 600. The web portal 702 can be used formanaging services of the devices of FIGS. 1 and/or 2 and communicationsystems 500-600. A web page of the web portal 702 can be accessed by aUniform Resource Locator (URL) with an Internet browser using anInternet-capable communication device such as those described in FIGS. 1and/or 2 and FIGS. 5-6. The web portal 702 can be configured, forexample, to access a media processor 506 and services managed therebysuch as a Digital Video Recorder (DVR), a Video on Demand (VoD) catalog,an Electronic Programming Guide (EPG), or a personal catalog (such aspersonal videos, pictures, audio recordings, etc.) stored at the mediaprocessor 506. The web portal 702 can also be used for provisioning IMSservices described earlier, provisioning Internet services, provisioningcellular phone services, and so on.

The web portal 702 can further be utilized to manage and provisionsoftware applications to adapt these applications as may be desired bysubscribers and/or service providers of devices of FIGS. 1 and/or 2, andcommunication systems 500-600.

FIG. 8 depicts an illustrative embodiment of a communication device 800.Communication device 800 can serve in whole or in part as anillustrative embodiment of the devices depicted in FIGS. 1 and/or 2 andFIGS. 5-6, and can be configured to perform portions of methods 300-400of FIGS. 3-4.

Communication device 800 can comprise a wireline and/or wirelesstransceiver 802 (herein transceiver 802), a user interface (UI) 804, apower supply 814, a location receiver 816, a motion sensor 818, anorientation sensor 820, and a controller 806 for managing operationsthereof. The transceiver 802 can support short-range or long-rangewireless access technologies such as Bluetooth®, ZigBee®, WiFi, DECT, orcellular communication technologies, just to mention a few (Bluetooth®and ZigBee® are trademarks registered by the Bluetooth® Special InterestGroup and the ZigBee® Alliance, respectively). Cellular technologies caninclude, for example, CDMA-1X, UMTS/HSDPA, GSM/GPRS, TDMA/EDGE, EV/DO,WiMAX, SDR, LTE, as well as other next generation wireless communicationtechnologies as they arise. The transceiver 802 can also be adapted tosupport circuit-switched wireline access technologies (such as PSTN),packet-switched wireline access technologies (such as TCP/IP, VoIP,etc.), and combinations thereof.

The UI 804 can include a depressible or touch-sensitive keypad 808 witha navigation mechanism such as a roller ball, a joystick, a mouse, or anavigation disk for manipulating operations of the communication device800. The keypad 808 can be an integral part of a housing assembly of thecommunication device 800 or an independent device operably coupledthereto by a tethered wireline interface (such as a USB cable) or awireless interface supporting for example Bluetooth®. The keypad 808 canrepresent a numeric keypad commonly used by phones, and/or a QWERTYkeypad with alphanumeric keys. The UI 804 can further include a display810 such as monochrome or color LCD (Liquid Crystal Display), OLED(Organic Light Emitting Diode) or other suitable display technology forconveying images to an end user of the communication device 800. In anembodiment where the display 810 is touch-sensitive, a portion or all ofthe keypad 808 can be presented by way of the display 810 withnavigation features.

The display 810 can use touch screen technology to also serve as a userinterface for detecting user input. As a touch screen display, thecommunication device 800 can be adapted to present a user interface withgraphical user interface (GUI) elements that can be selected by a userwith a touch of a finger. The touch screen display 810 can be equippedwith capacitive, resistive or other forms of sensing technology todetect how much surface area of a user's finger has been placed on aportion of the touch screen display. This sensing information can beused to control the manipulation of the GUI elements or other functionsof the user interface. The display 810 can be an integral part of thehousing assembly of the communication device 800 or an independentdevice communicatively coupled thereto by a tethered wireline interface(such as a cable) or a wireless interface.

The UI 804 can also include an audio system 812 that utilizes audiotechnology for conveying low volume audio (such as audio heard inproximity of a human ear) and high volume audio (such as speakerphonefor hands free operation). The audio system 812 can further include amicrophone for receiving audible signals of an end user. The audiosystem 812 can also be used for voice recognition applications. The UI804 can further include an image sensor 813 such as a charged coupleddevice (CCD) camera for capturing still or moving images.

The power supply 814 can utilize common power management technologiessuch as replaceable and rechargeable batteries, supply regulationtechnologies, and/or charging system technologies for supplying energyto the components of the communication device 800 to facilitatelong-range or short-range portable applications. Alternatively, or incombination, the charging system can utilize external power sources suchas DC power supplied over a physical interface such as a USB port orother suitable tethering technologies.

The location receiver 816 can utilize location technology such as aglobal positioning system (GPS) receiver capable of assisted GPS foridentifying a location of the communication device 800 based on signalsgenerated by a constellation of GPS satellites, which can be used forfacilitating location services such as navigation. The motion sensor 818can utilize motion sensing technology such as an accelerometer, agyroscope, or other suitable motion sensing technology to detect motionof the communication device 800 in three-dimensional space. Theorientation sensor 820 can utilize orientation sensing technology suchas a magnetometer to detect the orientation of the communication device800 (north, south, west, and east, as well as combined orientations indegrees, minutes, or other suitable orientation metrics).

The communication device 800 can use the transceiver 802 to alsodetermine a proximity to a cellular, WiFi, Bluetooth®, or other wirelessaccess points by sensing techniques such as utilizing a received signalstrength indicator (RSSI) and/or signal time of arrival (TOA) or time offlight (TOF) measurements. The controller 806 can utilize computingtechnologies such as a microprocessor, a digital signal processor (DSP),programmable gate arrays, application specific integrated circuits,and/or a video processor with associated storage memory such as Flash,ROM, RAM, SRAM, DRAM or other storage technologies for executingcomputer instructions, controlling, and processing data supplied by theaforementioned components of the communication device 800.

Other components not shown in FIG. 8 can be used in one or moreembodiments of the subject disclosure. For instance, the communicationdevice 800 can include a reset button (not shown). The reset button canbe used to reset the controller 806 of the communication device 800. Inyet another embodiment, the communication device 800 can also include afactory default setting button positioned, for example, below a smallhole in a housing assembly of the communication device 800 to force thecommunication device 800 to re-establish factory settings. In thisembodiment, a user can use a protruding object such as a pen or paperclip tip to reach into the hole and depress the default setting button.The communication device 800 can also include a slot for adding orremoving an identity module such as a Subscriber Identity Module (SIM)card. SIM cards can be used for identifying subscriber services,executing programs, storing subscriber data, and so forth.

The communication device 800 as described herein can operate with moreor less of the circuit components shown in FIG. 8. These variantembodiments can be used in one or more embodiments of the subjectdisclosure.

The communication device 800 can be adapted to perform the functions ofdevices of FIGS. 1 and/or 2, the media processor 506, the media devices508, or the portable communication devices 516 of FIG. 5, as well as theIMS CDs 601-502 and PSTN CDs 603-505 of FIG. 6. It will be appreciatedthat the communication device 800 can also represent other devices thatcan operate in, communication systems 500-600 of FIGS. 5-6 such as agaming console and a media player.

Upon reviewing the aforementioned embodiments, it would be evident to anartisan with ordinary skill in the art that said embodiments can bemodified, reduced, or enhanced without departing from the scope of theclaims described below. For example, an attention management system caninclude device 101 and additional devices for engaging and/or alertingthe user to pay attention to a presentation, using methods includingmethods 300-400. Other embodiments can be used in the subjectdisclosure.

It should be understood that devices described in the exemplaryembodiments can be in communication with each other via various wirelessand/or wired methodologies. The methodologies can be links that aredescribed as coupled, connected and so forth, which can includeunidirectional and/or bidirectional communication over wireless pathsand/or wired paths that utilize one or more of various protocols ormethodologies, where the coupling and/or connection can be direct (e.g.,no intervening processing device) and/or indirect (e.g., an intermediaryprocessing device such as a router).

FIG. 9 depicts an exemplary diagrammatic representation of a machine inthe form of a computer system 900 within which a set of instructions,when executed, may cause the machine to perform any one or more of themethods described above. One or more instances of the machine canoperate, for example, as the server 530, the media processor 506 andother devices of FIGS. 1-2 and 5-8. In particular, one or more instancesof the machine can operate as an audiovisual presentation device asshown in FIGS. 1-2. In some embodiments, the machine may be connected(e.g., using a network 926) to other machines. In a networkeddeployment, the machine may operate in the capacity of a server or aclient user machine in a server-client user network environment, or as apeer machine in a peer-to-peer (or distributed) network environment.

The machine may comprise a server computer, a client user computer, apersonal computer (PC), a tablet, a smart phone, a laptop computer, adesktop computer, a control system, a network router, switch or bridge,or any machine capable of executing a set of instructions (sequential orotherwise) that specify actions to be taken by that machine. It will beunderstood that a communication device of the subject disclosureincludes broadly any electronic device that provides voice, video ordata communication. Further, while a single machine is illustrated, theterm “machine” shall also be taken to include any collection of machinesthat individually or jointly execute a set (or multiple sets) ofinstructions to perform any one or more of the methods discussed herein.

The computer system 900 may include a processor (or controller) 902(e.g., a central processing unit (CPU)), a graphics processing unit(GPU, or both), a main memory 904 and a static memory 906, whichcommunicate with each other via a bus 908. The computer system 900 mayfurther include a display unit 910 (e.g., a liquid crystal display(LCD), a flat panel, or a solid state display). The computer system 900may include an input device 912 (e.g., a keyboard), a cursor controldevice 914 (e.g., a mouse), a disk drive unit 916, a signal generationdevice 918 (e.g., a speaker or remote control) and a network interfacedevice 920. In distributed environments, the embodiments described inthe subject disclosure can be adapted to utilize multiple display units910 controlled by two or more computer systems 900. In thisconfiguration, presentations described by the subject disclosure may inpart be shown in a first of the display units 910, while the remainingportion is presented in a second of the display units 910.

The disk drive unit 916 may include a tangible computer-readable storagemedium 922 on which is stored one or more sets of instructions (e.g.,software 924) embodying any one or more of the methods or functionsdescribed herein, including those methods illustrated above. Theinstructions 924 may also reside, completely or at least partially,within the main memory 904, the static memory 906, and/or within theprocessor 902 during execution thereof by the computer system 900. Themain memory 904 and the processor 902 also may constitute tangiblecomputer-readable storage media.

Dedicated hardware implementations including, but not limited to,application specific integrated circuits, programmable logic arrays andother hardware devices can likewise be constructed to implement themethods described herein. Application specific integrated circuits andprogrammable logic array can use downloadable instructions for executingstate machines and/or circuit configurations to implement embodiments ofthe subject disclosure. Applications that may include the apparatus andsystems of various embodiments broadly include a variety of electronicand computer systems. Some embodiments implement functions in two ormore specific interconnected hardware modules or devices with relatedcontrol and data signals communicated between and through the modules,or as portions of an application-specific integrated circuit. Thus, theexample system is applicable to software, firmware, and hardwareimplementations.

In accordance with various embodiments of the subject disclosure, theoperations or methods described herein are intended for operation assoftware programs or instructions running on or executed by a computerprocessor or other computing device, and which may include other formsof instructions manifested as a state machine implemented with logiccomponents in an application specific integrated circuit or fieldprogrammable gate array. Furthermore, software implementations (e.g.,software programs, instructions, etc.) including, but not limited to,distributed processing or component/object distributed processing,parallel processing, or virtual machine processing can also beconstructed to implement the methods described herein. Distributedprocessing environments can include multiple processors in a singlemachine, single processors in multiple machines, and/or multipleprocessors in multiple machines. It is further noted that a computingdevice such as a processor, a controller, a state machine or othersuitable device for executing instructions to perform operations ormethods may perform such operations directly or indirectly by way of oneor more intermediate devices directed by the computing device.

While the tangible computer-readable storage medium 922 is shown in anexample embodiment to be a single medium, the term “tangiblecomputer-readable storage medium” should be taken to include a singlemedium or multiple media (e.g., a centralized or distributed database,and/or associated caches and servers) that store the one or more sets ofinstructions. The term “tangible computer-readable storage medium” shallalso be taken to include any non-transitory medium that is capable ofstoring or encoding a set of instructions for execution by the machineand that cause the machine to perform any one or more of the methods ofthe subject disclosure. The term “non-transitory” as in a non-transitorycomputer-readable storage includes without limitation memories, drives,devices and anything tangible but not a signal per se.

The term “tangible computer-readable storage medium” shall accordinglybe taken to include, but not be limited to: solid-state memories such asa memory card or other package that houses one or more read-only(non-volatile) memories, random access memories, or other re-writable(volatile) memories, a magneto-optical or optical medium such as a diskor tape, or other tangible media which can be used to store information.Accordingly, the disclosure is considered to include any one or more ofa tangible computer-readable storage medium, as listed herein andincluding art-recognized equivalents and successor media, in which thesoftware implementations herein are stored.

Although the present specification describes components and functionsimplemented in the embodiments with reference to particular standardsand protocols, the disclosure is not limited to such standards andprotocols. Each of the standards for Internet and other packet switchednetwork transmission (e.g., TCP/IP, UDP/IP, HTML, HTTP) representexamples of the state of the art. Such standards are from time-to-timesuperseded by faster or more efficient equivalents having essentiallythe same functions. Wireless standards for device detection (e.g.,RFID), short-range communications (e.g., Bluetooth®, WiFi, Zigbee®), andlong-range communications (e.g., WiMAX, GSM, CDMA, LTE) can be used bycomputer system 900. In one or more embodiments, information regardinguse of services can be generated including services being accessed,media consumption history, user preferences, and so forth. Thisinformation can be obtained by various methods including user input,detecting types of communications (e.g., video content vs. audiocontent), analysis of content streams, and so forth. The generating,obtaining and/or monitoring of this information can be responsive to anauthorization provided by the user. In one or more embodiments, ananalysis of data can be subject to authorization from user(s) associatedwith the data, such as an opt-in, an opt-out, acknowledgementrequirements, notifications, selective authorization based on types ofdata, and so forth.

The illustrations of embodiments described herein are intended toprovide a general understanding of the structure of various embodiments,and they are not intended to serve as a complete description of all theelements and features of apparatus and systems that might make use ofthe structures described herein. Many other embodiments will be apparentto those of skill in the art upon reviewing the above description. Theexemplary embodiments can include combinations of features and/or stepsfrom multiple embodiments. Other embodiments may be utilized and derivedtherefrom, such that structural and logical substitutions and changesmay be made without departing from the scope of this disclosure. Figuresare also merely representational and may not be drawn to scale. Certainproportions thereof may be exaggerated, while others may be minimized.Accordingly, the specification and drawings are to be regarded in anillustrative rather than a restrictive sense.

Although specific embodiments have been illustrated and describedherein, it should be appreciated that any arrangement which achieves thesame or similar purpose may be substituted for the embodiments describedor shown by the subject disclosure. The subject disclosure is intendedto cover any and all adaptations or variations of various embodiments.Combinations of the above embodiments, and other embodiments notspecifically described herein, can be used in the subject disclosure.For instance, one or more features from one or more embodiments can becombined with one or more features of one or more other embodiments. Inone or more embodiments, features that are positively recited can alsobe negatively recited and excluded from the embodiment with or withoutreplacement by another structural and/or functional feature. The stepsor functions described with respect to the embodiments of the subjectdisclosure can be performed in any order. The steps or functionsdescribed with respect to the embodiments of the subject disclosure canbe performed alone or in combination with other steps or functions ofthe subject disclosure, as well as from other embodiments or from othersteps that have not been described in the subject disclosure. Further,more than or less than all of the features described with respect to anembodiment can also be utilized.

Less than all of the steps or functions described with respect to theexemplary processes or methods can also be performed in one or more ofthe exemplary embodiments. Further, the use of numerical terms todescribe a device, component, step or function, such as first, second,third, and so forth, is not intended to describe an order or functionunless expressly stated so. The use of the terms first, second, thirdand so forth, is generally to distinguish between devices, components,steps or functions unless expressly stated otherwise. Additionally, oneor more devices or components described with respect to the exemplaryembodiments can facilitate one or more functions, where the facilitating(e.g., facilitating access or facilitating establishing a connection)can include less than every step needed to perform the function or caninclude all of the steps needed to perform the function.

In one or more embodiments, a processor (which can include a controlleror circuit) has been described that performs various functions. Itshould be understood that the processor can be multiple processors,which can include distributed processors or parallel processors in asingle machine or multiple machines. The processor can be used insupporting a virtual processing environment. The virtual processingenvironment may support one or more virtual machines representingcomputers, servers, or other computing devices. In such virtualmachines, components such as microprocessors and storage devices may bevirtualized or logically represented. The processor can include a statemachine, application specific integrated circuit, and/or programmablegate array including a Field PGA. In one or more embodiments, when aprocessor executes instructions to perform “operations”, this caninclude the processor performing the operations directly and/orfacilitating, directing, or cooperating with another device or componentto perform the operations.

The Abstract of the Disclosure is provided with the understanding thatit will not be used to interpret or limit the scope or meaning of theclaims. In addition, in the foregoing Detailed Description, it can beseen that various features are grouped together in a single embodimentfor the purpose of streamlining the disclosure. This method ofdisclosure is not to be interpreted as reflecting an intention that theclaimed embodiments require more features than are expressly recited ineach claim. Rather, as the following claims reflect, inventive subjectmatter lies in less than all features of a single disclosed embodiment.Thus the following claims are hereby incorporated into the DetailedDescription, with each claim standing on its own as a separately claimedsubject matter.

What is claimed is:
 1. A method, comprising: detecting, by a processingsystem including a processor of an audiovisual presentation device,attention by a user to a presentation of content at a display of theaudiovisual presentation device, the content delivered to theaudiovisual presentation device over a network, the content including anaudio portion and a video portion, the presentation being initiated at afirst video quality level, wherein the detecting comprises: obtaining areal-time image of the user, performing an analysis of the image,determining, based on the analysis, a presence in the image of apredefined facial feature of the user, and determining, based on thepresence of the predefined facial feature, whether the user is attentiveto the presentation, wherein the detecting is performed at predeterminedtime intervals during the presentation, wherein the time intervals arevaried during presentation of a portion of the content in accordancewith a level of network resources required to deliver that portion; andresponsive to the user not being attentive to the presentation,initiating, by the processing system, a first procedure at theaudiovisual presentation device to reduce resource consumption by theaudiovisual presentation device, wherein the first procedure comprisesone or more of: continuing the presentation at a second video qualitylevel lower than the first video quality level, reducing a brightness ofthe display, continuing the presentation with only the audio portion,and discontinuing the presentation.
 2. The method of claim 1, whereinthe detecting comprises storing the image in a data storage local to theaudiovisual presentation device, and further comprising deleting, by theprocessing system, the image from the data storage after the analysis isperformed.
 3. The method of claim 1, wherein the time intervals aredecreased in accordance with an increase in the level of networkresources.
 4. The method of claim 1, wherein the time intervals arespecified in metadata accompanying the content.
 5. The method of claim1, wherein the user is determined to not be attentive to thepresentation responsive to the predefined facial feature not beingpresent in the image over a specified number of consecutive timeintervals.
 6. The method of claim 1, further comprising: subsequent tothe first procedure and responsive to the user being attentive to thepresentation, initiating, by the processing system, a second procedureat the audiovisual presentation device to restore resource consumptionby the audiovisual presentation device, wherein the second procedurecomprises one or more of: continuing the presentation at the first videoquality level, and increasing a brightness of the display.
 7. The methodof claim 6, wherein the detecting is performed at predetermined timeintervals during the presentation, and wherein the second procedure isinitiated responsive to the predefined facial feature being present inthe image over a specified number of consecutive time intervals.
 8. Themethod of claim 1, wherein the analysis of the image comprises an eyedetection procedure.
 9. The method of claim 1, further comprising:presenting, by the processing system prior to the presentation of thecontent, a menu of resource reduction options to the user; andreceiving, by the processing system, a selection from the menu, whereinthe first procedure is performed in accordance with the selection. 10.The method of claim 9, wherein the resource reduction options comprise aselectable sequence of resource reductions.
 11. A device, comprising aprocessing system including a processor; and a memory that storesexecutable instructions that, when executed by the processing system,facilitate performance of operations comprising: detecting attention bya user to a presentation of content at a display of an audiovisualpresentation device, the content delivered to the audiovisualpresentation device over a network, the content including an audioportion and a video portion, the presentation being initiated at a firstvideo quality level, wherein the detecting comprises: obtaining areal-time image of the user, performing an analysis of the image, theanalysis comprising an eye detection procedure, determining, based onthe analysis, a presence in the image of a predefined facial feature ofthe user, determining, based on the presence of the predefined facialfeature, whether the user is attentive to the presentation, wherein thedetecting is performed at predetermined time intervals during thepresentation, wherein the time intervals are varied during presentationof a portion of the content in accordance with a level of networkresources required to deliver that portion; and responsive to the usernot being attentive to the presentation, initiating a first procedure atthe audiovisual presentation device to reduce resource consumption bythe audiovisual presentation device, wherein the detecting is performedat predetermined time intervals during the presentation, and wherein thefirst procedure comprises one or more of: continuing the presentation ata second video quality level lower than the first video quality level,reducing a brightness of the display, continuing the presentation withonly the audio portion, and discontinuing the presentation.
 12. Thedevice of claim 11, wherein the detecting comprises storing the image ina data storage local to the audiovisual presentation device, and whereinthe operations further comprise deleting the image from the data storageafter the analysis is performed.
 13. The device of claim 11, wherein theuser is determined to not be attentive to the presentation responsive tothe predefined facial feature not being present in the image over aspecified number of consecutive time intervals.
 14. The device of claim11, wherein the operations further comprise: subsequent to the firstprocedure and responsive to the user being attentive to thepresentation, initiating a second procedure at the audiovisualpresentation device to restore resource consumption by the audiovisualpresentation device, wherein the second procedure comprises one or moreof: continuing the presentation at the first video quality level, andincreasing a brightness of the display.
 15. The device of claim 11,wherein the operations further comprise: presenting, prior to thepresentation of the content, a menu of resource reduction options to theuser; and receiving a selection from the menu, wherein the firstprocedure is performed in accordance with the selection.
 16. Anon-transitory machine-readable medium comprising executableinstructions that, when executed by a processing system including aprocessor, facilitate performance of operations comprising: detectingattention by a user to a presentation of content at a display of anaudiovisual presentation device, the content delivered to theaudiovisual presentation device over a network, the content including anaudio portion and a video portion, the presentation being initiated at afirst video quality level, wherein the detecting comprises: obtaining areal-time image of the user, performing an analysis of the image,determining, based on the analysis, a presence in the image of apredefined facial feature of the user, determining, based on thepresence of the predefined facial feature, whether the user is attentiveto the presentation, wherein the user is determined to not be attentiveto the presentation responsive to the predefined facial feature notbeing present in the image over a plurality of time intervals, whereinthe detecting is performed at predetermined time intervals during thepresentation, wherein the time intervals are varied during presentationof a portion of the content in accordance with a level of networkresources required to deliver that portion; and responsive to the usernot being attentive to the presentation, initiating a first procedure atthe audiovisual presentation device to reduce resource consumption bythe audiovisual presentation device, wherein the first procedurecomprises one or more of: continuing the presentation at a second videoquality level lower than the first video quality level, reducing abrightness of the display, continuing the presentation with only theaudio portion, and discontinuing the presentation.
 17. Thenon-transitory machine-readable medium of claim 16, wherein thedetecting comprises storing the image in a data storage local to theaudiovisual presentation device, and wherein the operations furthercomprise deleting the image from the data storage after the analysis isperformed.
 18. The non-transitory machine-readable medium of claim 16,wherein the user is determined to not be attentive to the presentationresponsive to the predefined facial feature not being present in theimage over a specified number of consecutive time intervals.
 19. Thenon-transitory machine-readable medium of claim 16, wherein theoperations further comprise: subsequent to the first procedure andresponsive to the user being attentive to the presentation, initiating asecond procedure at the audiovisual presentation device to restoreresource consumption by the audiovisual presentation device, wherein thesecond procedure comprises one or more of: continuing the presentationat the first video quality level, and increasing a brightness of thedisplay.
 20. The non-transitory machine-readable medium of claim 16,wherein the analysis of the image comprises an eye detection procedure.